There are a number of ways you can choose which routes or activities you'd like to see on the map.
You can toggle Community Content (routes created by other users) on and off with the button on the top left-hand side of the screen, as shown in the screenshots below.
You can choose which activities you'd like to view by clicking the All Activities filter button on the top left-hand side of the screen. Then select the activities you'd like to view and click Show all activities, as shown in the screenshots below.
FATMAP Select and Difficulty
When you tap the Filters button (shown in the screenshot below) you can choose to only view FATMAP Select content, and you can also choose to view routes by their difficulty grading.